Thrashing-machine



IVILLIAM C. ADAMS, OF ROCHESTER, MICHIGAN.

THRASHING-IVIACHINE.4

SPECIFICATION forming part of Lgtters Patent No. 463,883, dated November24, 1891. Application tiled April l, 1891. Serial No. 387,312. (Nomodel.)

To @ZZ whom t may concern,.-

Be it known that I, WILLIAM C. ADAMS, a citizen of the United States,residing at Rochester, in the county of Oakland and State of Michigan,have invented certain new and useful Improvements inThrashing-llfachines, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in auxiliarythrashing attachments especially designed for bean or grain thrashers;and it consists in the peculiar construction of a thrashing-cylinder,with a rotating thrashing-head therein, adapted to receive the tailingsand to thrash and elevate the same again to the screens.

The invention further consists in the peculiar construction,arrangement, and combination of the various parts, all as more fullyhereinafter described.

In the drawings, Figure 1 is a diagram elevation of a thrashing-machineto which my attachment is applied. Fig. 2 is a detached perspective viewof the attachment. Fig. 3 is a central vertical cross-section. Fig. aisa section on line :c x in Fig. Fig. 5 is a perspective view of theattachment, showing its arrangement in connection with the screen.

A is the casing of my attachment, which is secured at thelower end ofthe screen B, which has sides C, and through which the draft from thecombined cylinder and fan ascends, the beans or grain coming from thethrashingcylinder above falling upon the screen, while the lighterparticles are blown away by the draft. The tailings will pass down thescreen to the chute C', inclined toward the casing of the attachment.

D is a feed-aperture in the lower side of the casing through which thetailings enter the attachment.

Vithin the casingA is a shaft E, upon which is secured a head F, havingthe radially-extending forks G, preferably provided with a central toothct and two side teeth Z), as plainly shown in Fig. 3. Motion is impartedto the shaft in the head from the pulley H, connected with any suitabledrive-pulley on the machine.

I are a series of thrashing-teeth formed in the lower side of thecasing, within and preferably upon the door J which is hinged at K,forming a part of the casing.

L is a locking-pin for holding the door in its closed position.

It is evident that the tailings will be drawn.

in by the revolution of the head F and will be thrashed by means of theteeth G and I in the rapid revolution of the'head and carried to the topof the casing, where it will be discharged through the discharge-chuteM, beneath which is the lateral return-chute N, which brings thematerial back onto the screen B, Where the beans will pass, through thescreen and the finer particles are blown away by the blast, as beforedescribed.

It will be seen that by attaching this auxiliary thrasher at the foot ofthe screen I can dispense with the elevator ordinarily employed toreturn the material to the thrashing-cylinder to be carried againthrough the machine, and this auxiliary thrasher can be operated withmuch less power than such an elevator, is less expensive to build, andwill take up the tailings by themselves separated from the rest of thematerial to be thrashed, and itl will perform its work much morethoroughly than will be the case if mingled with the new material beingfed in through the main thrasher. In case any material collects in thecasing I can remove it by opening the door J.

O is a sand-screen, preferably placed in the chute C, near the apertureD of the casing A.

What I claim as my invention isl. In a thrashing-machine, thecombination, with a screen for the tailings, of an auxiliary thrashingand elevating attachment into which the tailings are fed, and a chuteleading out from the thrashing attachment to a point above the screen,substantially as dcscribed.

2. In a thrashing-machine, the combination, with the screen for thetailings, of an auxiliary thrashing attachment adapted to receive thetailings therefrom at the lower end, and an exit-chute from saidthrasher connected with the screen between its ends, substantially asdescribed.

3. The combination, in a thrashing-machine, of the screen B, thetailings-chute C', the auxiliary thrashing attachment having aninletaperture at its lower edge connected with said IOO chute, itthrashing-cylinder, a suitable toothed concave, and :L discharge-chuteat the upper end. connected with the screen between its ends,substantially as described.

4. In a. thrashing-machine, the combination, with the tailings-screenhaving an inclined chute across the discharge end thereof, of anauxiliary tailings-thrasher consisting of a cas ing having annlet-aperture in the lower part thereof at a point adjacent to the endof the chute, a thrashing-cylinder in the casing, zt

door in the lower part of the casing below the cylinder, teeth on theinner face of the door, and :i discharge-chute :it the upper end of thecasing` connecting the saine with the screen, substantially asdescribed.

In testimony whereof l ztfx my sign etui-e in presence of two witnesses.

WILLIAM C. ADAMS.

Witnesses:

E. M. BARNES, A. F. CAMPBELL.

